Comes from the Greek name Alejandros
meaning, protector of men
the name Aleksandar is used in slavic country's like Serbia, Macedonia, and others
People named Aleksandar have most of the time slavic blood, meaning that they are attractive and intelligent people
Other related names used in other parts of the world
Alexander, Aleksander, Aleksandr, Alex, Aleks, Alec,

One of the greatest representors of this name was The Macedon Aleksander the Great,
who was the greatest king of all time.